转载： convert String arraylist to string array in java?

将ArrayList<String>类型的变量list转换成String[]，可以使用String[] array=list.toArray(new String[list.size()])。

http://stackoverflow.com/questions/4042434/convert-string-arraylist-to-string-array-in-java

亮点：

List<String> list = ..;

String[] array = list.toArray(new String[list.size()]);

The toArray() method without passing any argument returns Object[]. So you have to pass an array as an argument, which will be filled with the data from the list, and returned. You can pass an empty array as well, but you can also pass an array with the desired size.

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